CN205864109U - Rotor, motor and compressor for motor - Google Patents
Rotor, motor and compressor for motor Download PDFInfo
- Publication number
- CN205864109U CN205864109U CN201620693818.0U CN201620693818U CN205864109U CN 205864109 U CN205864109 U CN 205864109U CN 201620693818 U CN201620693818 U CN 201620693818U CN 205864109 U CN205864109 U CN 205864109U
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- China
- Prior art keywords
- rotor
- motor
- punching
- arc section
- magnet
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Abstract
The utility model discloses a kind of rotor for motor, motor and compressor, described rotor includes rotor core and multiple permanent magnet.Rotor core is formed by multiple rotor punchings are stacked, rotor punching includes punching body, punching body is provided with axis hole and multiple Magnet grooves of the spaced apart setting in periphery around axis hole, and multiple permanent magnets are located in the Magnet groove of correspondence, and permanent magnet is rare-earth permanent magnet.According to the rotor for motor of the present utility model, by the permanent magnet being located in Magnet groove is set to rare-earth permanent magnet, utilize the advantage that rare-earth permanent magnet residual flux density is high, the area of rotor punching can be reduced, reduce material cost, the use demand of motor can be met simultaneously.
Description
Technical field
This utility model relates to machine field, especially relates to a kind of rotor for motor, motor and compressor.
Background technology
In correlation technique, the frequency conversion motor of freezer compressor, the rotor in its frequency conversion motor the most all uses ferrite
Magnet is as permanent magnet.But, ferrite magnet residual flux density is little, and rotor punching size needs design very big, and material cost is high.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this reality
With a kind of rotor for motor of novel proposition, this rotor volume is little, low cost.
This utility model also proposed a kind of motor with above-mentioned rotor.
This utility model also been proposed a kind of compressor with above-mentioned motor.
According to the rotor for motor of this utility model first aspect embodiment, including: rotor core, described rotor ferrum
Core is formed by multiple rotor punchings are stacked, described rotor punching include punching body, described punching body be provided with axis hole and
Multiple Magnet grooves of the spaced apart setting in periphery around described axis hole；Multiple permanent magnets, multiple described permanent magnets are located at correspondence
In described Magnet groove, described permanent magnet is rare-earth permanent magnet.
According to the rotor for motor of this utility model embodiment, by the permanent magnet being located in Magnet groove is set to
Rare-earth permanent magnet, utilizes the advantage that rare-earth permanent magnet residual flux density is high, can reduce the area of rotor punching, reduces material and becomes
This, can meet the use demand of motor simultaneously.
According to embodiments more of the present utility model, multiple described rotor punchings include the first rotor punching and the second rotor
Punching, the shaft hole diameter of described the first rotor punching is different with the shaft hole diameter of described second rotor punching.
According to embodiments more of the present utility model, the internal diameter of described axis hole is D1, the maximum outside diameter of described rotor punching
Meet for D2, described D1, described D2: 2.5≤D2/D1≤2.6.
According to embodiments more of the present utility model, each described Magnet groove includes the main paragraph linearly extended and is located at
The bending segment at described main paragraph two ends, in the described main paragraph of the described Magnet groove that each described permanent magnet is located at correspondence.
Further, the outer contour of described rotor punching includes the first arc section being arranged concentrically and radius of curvature is different
With the second arc section, described first arc section is multiple and each described first arc section of spaced apart setting and each described magnetic
The middle part of metal trough is correspondingly arranged, and described second arc section is that multiple and each described second arc section of spaced apart setting is with adjacent
Neighbouring two the end correspondence of two described Magnet grooves, adjacent described first arc section and described second arc section passed through
The section of crossing is connected.
Further, the radius of curvature of described first arc section is R1, and the radius of curvature of described second arc section is R2, institute
State R1, described R2 to meet: 1.010≤R1/R2≤1.045.
According to embodiments more of the present utility model, described punching body being also formed with multiple through hole, each through hole sets
Arrange in the end in the outside of described Magnet groove and neighbouring described Magnet groove.
According to embodiments more of the present utility model, the thickness H scope of described permanent magnet is: 1.5mm≤H≤2.5mm.
According to the motor of this utility model second aspect embodiment, including: real according to the above-mentioned first aspect of this utility model
Execute the rotor for motor of example.
According to the motor of this utility model embodiment, by arranging above-mentioned rotor, meeting the use demand of motor
Meanwhile, the cost of motor can be reduced.
According to the compressor of this utility model third aspect embodiment, including: bent axle；According to this utility model above-mentioned second
The motor of aspect embodiment, the main shaft section of described bent axle and the described shaft hole matching of described rotor.
According to the compressor of this utility model embodiment, by arranging above-mentioned motor, the cost of compressor can be reduced,
The performance requirement of compressor can be met simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first rotor punching of the rotor according to this utility model embodiment；
Fig. 2 is the schematic diagram of the second rotor punching of the rotor according to this utility model embodiment；
Fig. 3 is the schematic diagram of the rotor according to this utility model embodiment；
Fig. 4 is the profile of Fig. 3.
Reference:
Rotor 100,
Rotor core 1, rotor punching 11, punching body 111, axis hole 112, Magnet groove 113, main paragraph 1131, bending segment
1132, through hole 114, fixing hole 115, the first rotor punching 12, the second rotor punching 13,
First arc section 14, the second arc section 15, changeover portion 16,
Permanent magnet 2.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to be used for explaining this utility model, and it is not intended that new to this practicality
The restriction of type.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " suitable
Hour hands ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings
Or position relationship, be for only for ease of describe this utility model and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this
For the those of ordinary skill in field, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
Below with reference to Fig. 1-Fig. 4, the rotor 100 for motor according to this utility model embodiment is described.
As Figure 1-Figure 4, according to the rotor 100 for motor of this utility model first aspect embodiment, including: turn
Sub-iron core 1 and multiple permanent magnet 2.
Specifically, rotor core 1 is formed by multiple rotor punchings 11 are stacked.Such as, multiple rotor punchings 11 can lead to
Cross the securing members such as screw to be attached fixing, rotor punching 11 can be arranged multiple for fixing that the securing members such as screw pass
Hole 115.Wherein, rotor punching 11 includes that punching body 111, punching body 111 are provided with axis hole 112 and around axis hole 112
Multiple Magnet grooves 113 (such as, Magnet groove 113 is four) of the spaced apart setting in periphery.Multiple permanent magnet 2 (such as, permanent magnets
2 is four) it is located in the Magnet groove 113 of correspondence, permanent magnet 2 is rare-earth permanent magnet.Wherein, the size of axis hole 112 can basis
Being actually needed setting, the such as size range of axis hole 112 can be located between 16mm-18mm.
Permanent magnet 2 in rotor 100 is used rare-earth permanent magnet, utilizes the advantage that rare-earth permanent magnet residual flux density is high, can
Less with what the size of rotor 100 was arranged, the area of rotor punching 11 can be reduced, such that it is able to reduce rotor core 1
Volume and materials, reduce material cost, also reduces the volume of rotor 100 simultaneously.Thus, in the situation that power of motor is certain
Under, use above-mentioned rotor 100, the volume of motor can be reduced so that motor miniaturization, also meet the performance need of motor simultaneously
Ask.
According to the rotor 100 for motor of this utility model embodiment, by the permanent magnet that will be located in Magnet groove 113
2 are set to rare-earth permanent magnet, utilize the advantage that rare-earth permanent magnet residual flux density is high, can reduce the area of rotor punching 11, fall
Low material cost, can meet the use demand of motor simultaneously.
According to embodiments more of the present utility model, with reference to Fig. 1-Fig. 4, multiple rotor punchings 11 include the first rotor punching
12 and second rotor punching 13, axis hole 112 internal diameter of the first rotor punching 12 and axis hole 112 internal diameter of the second rotor punching 13 are not
With.Thus, it is possible to make rotor 100 be suitable for the rotating shaft of different structure.
In specific embodiments more of the present utility model, with reference to Fig. 1-Fig. 4, in the axis hole 112 of the second rotor punching 13
Footpath can be more than axis hole 112 internal diameter of the first rotor punching 12.Such as, axis hole 112 internal diameter of the first rotor punching 12 can be
18mm, axis hole 112 internal diameter of the second rotor punching 13 can be 24.4mm.In the motor application by having this rotor 100 to pressure
Time on contracting machine, the axis hole 112 of rotor 100 is that the bent axle with compressor coordinates, and the upper end radial dimension of the bent axle of compressor is relatively
Greatly, now the upper part of rotor core 1 can be formed by multiple second rotor punchings 13 are stacked, the remainder of rotor core 1
Can be formed by multiple the first rotor punchings 12 are stacked, thus can form rotor 100, its internal axis hole 112 upper part footpath
Relatively big to size, such that it is able to the bent axle of above-mentioned compressor with the use of, meet the use demand of different compressors.
Certainly, axis hole 112 internal diameter on multiple rotor punchings 11 can also be consistent, now by consistent the turning of axis hole 112
The stacked rotor core 1 of sub-punching 11 may be used in the uniform rotating shaft of the diameter of axle.
In embodiments more of the present utility model, with reference to Fig. 1-Fig. 3, the internal diameter of axis hole 112 is D1, rotor punching 11
Maximum outside diameter is D2, and D1, D2 meet: 2.5≤D2/D1≤2.6.Thus, the situation of use is met in the size ensureing axis hole 112
Under, in the range of the size of rotor punching 11 being arranged on reasonably, magnetic circuit magnetic flux can be guaranteed, simultaneously on rotor 100
Magnetic induction everywhere is all not up to saturated, can meet the use demand of motor, and the area of rotor punching 11 is little, material
Material low cost.
It should be noted that include, at rotor punching 11, the first rotor punching 12 and that above-mentioned axis hole 112 internal diameter is different
During two rotor punchings 13, described " the internal diameter D1 of axis hole 112 " is the internal diameter of the rotor punching 11 that axis hole 112 is less.
Such as, in the example of Fig. 1-Fig. 4, rotor punching 11 includes the first rotor punching that above-mentioned axis hole 112 internal diameter is different
Sheet 12 and the second rotor punching 13, axis hole 112 internal diameter of the first rotor punching 12 can be 18mm, the axle of the second rotor punching 13
Hole 112 internal diameter can be 24.4mm, and now described " the internal diameter D1 of axis hole 112 " is axis hole 112 internal diameter of the first rotor punching 12
18mm, the maximum outside diameter of rotor punching 11 can be 46.6mm.At this point it is possible to ensure the sine degree in magnetic field so that rotor 100 has
There is good performance.
In embodiments more of the present utility model, with reference to Fig. 1-Fig. 3, each Magnet groove 113 includes linearly extending
Main paragraph 1131 and the bending segment 1132 being located at main paragraph 1131 two ends, each permanent magnet 2 is located at the master of the Magnet groove 113 of correspondence
In body section 1131.Thus, the two ends of each permanent magnet 2 all can be formed with the air gap being made up of bending segment 1132, such that it is able to subtract
Few leakage field, improves the performance of rotor 100, such that it is able to improve the performance of motor.
Further, the outer contour of rotor punching 11 includes the first arc section 14 being arranged concentrically and radius of curvature is different
With the second arc section 15, the center of curvature of the such as first arc section 14 and the second arc section 15 can be with the center weight of axis hole 112
Close.First arc section 14 is that multiple and each first arc sections 14 of spaced apart setting are corresponding with the middle part of each Magnet groove 113
Arranging, the second arc section 15 is multiple and each second arc sections 15 neighbour with adjacent two Magnet grooves 113 of spaced apart setting
Two near end correspondences, the first adjacent arc section 14 is connected by changeover portion 16 with the second arc section 15.Thus, by rotor
The outer contour of punching 11 is arranged to above-mentioned non-circular, can improve the sine degree in magnetic field.
Such as, the outer contour of rotor punching 11 includes four the first arc sections 14 and four the second arc sections 15, first
Arc section 14 and the second arc section 15 setting interlaced with each other, passed through between adjacent the first arc section 14 and the second arc section 15
The section of crossing 16 connects, and the punching body 111 of rotor punching 11 is provided with four Magnet grooves 113, and each first arc section 14 is facing to every
The middle part of individual Magnet groove 113 is correspondingly arranged, and each second arc section 15 is facing to neighbouring two of the most adjacent two Magnet grooves 113
End.Further, there is angle, main paragraph 1131 and bending between main paragraph 1131 and the bending segment 1132 of each Magnet groove 113
Angle opening between section 1132 can be towards the center of rotor punching 11, in the main body that permanent magnet 2 is arranged on Magnet groove 113
During section 1131, can be anti-by spacing for permanent magnet 2 in main paragraph 1131 by the bending segment 1132 at each Magnet groove 113 two ends
Only permanent magnet 2 moves.
Further, the radius of curvature of the first arc section 14 is R1, and the radius of curvature of the second arc section 15 is R2, R1, R2
Meet: 1.010≤R1/R2≤1.045.Thus, by radius of curvature R 1 and the curvature of the second arc section 15 of the first arc section 14
The ratio of radius R2 is arranged in above-mentioned scope, and magnetic field can be made to have more preferable sine degree.Such as, the value of R1 can be arranged
Value for 23.3mm, R2 could be arranged to 22.8mm.
In embodiments more of the present utility model, with reference to Fig. 1-Fig. 3, punching body 111 is also formed with multiple through hole
114, each through hole 114 be located at Magnet groove 113 outside (described " outside " refer to Magnet groove 113 away from punching body 111
The side at center) and the end setting of adjacent magnet groove 113.Thus, by the above-mentioned multiple through holes 114 arranged, can press down
Make 5 subharmonic and 7 subharmonic so that magnetic field has more preferable sine degree.Such as, punching body 111 is provided with four Magnet
During groove 113, through hole 114 can arrange eight, is equipped with through hole 114 near two ends of each Magnet groove 113.Alternatively,
Through hole 114 can be circle, Long Circle, ellipse etc..
In embodiments more of the present utility model, with reference to Fig. 3 and Fig. 4, the thickness H scope of permanent magnet 2 is: 1.5mm≤H
≤2.5mm.During thus, it is possible to ensure the motor operation with this rotor 100, it is contemplated that the demagnetization current impact on permanent magnet 2,
The thickness H of permanent magnet 2 is arranged within the above range, it is ensured that permanent magnet 2 has higher residual flux density so that permanent magnet
2 in the case of satisfied use, it is possible to reduce the materials of permanent magnet 2, cost-effective.Certainly, the thickness at permanent magnet 2 is arranged to
During different size, the motor demand of different capacity can be met, the most just can meet the demand of the compressor of different displacements.
According to the motor of this utility model second aspect embodiment, including: real according to the above-mentioned first aspect of this utility model
Execute the rotor 100 for motor of example.Thus, by arranging above-mentioned rotor 100, the cost of motor can be reduced, and permissible
Realize the miniaturization of motor, motor can also be made simultaneously to meet the demand of compressor of different displacements.
According to the motor of this utility model embodiment, by arranging above-mentioned rotor 100, meeting the use demand of motor
While, the cost of motor can be reduced.
According to the compressor of this utility model third aspect embodiment, including: bent axle with according to this utility model above-mentioned
The motor of two aspect embodiments, the main shaft section of bent axle coordinates with the axis hole 112 of rotor 100.Thus, can drive when motor works
Dynamic crankshaft rotates.Alternatively, during above-mentioned compressor may be used for the refrigeration systems such as refrigerator.
By adjusting the size of rotor 100 rotor punching 11, the gauge of permanent magnet 2, reducing rotor 100 materials
While, the performance requirement of different displacements compressor can be met.Further, can due to the rotor punching 11 of motor rotor 100
To be arranged to not coaxial aperture 112 internal diameter, rotor 100 thus can be made to coordinate with the bent axle of difformity structure, strengthen motor
The suitability.
According to the compressor of this utility model embodiment, by arranging above-mentioned motor, the cost of compressor can be reduced,
The performance requirement of compressor can be met simultaneously.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
In above-described embodiment can be changed, revise, replace and modification.
Claims (10)
1. the rotor for motor, it is characterised in that including:
Rotor core, described rotor core is formed by multiple rotor punchings are stacked, and described rotor punching includes punching body, described
Punching body is provided with axis hole and multiple Magnet grooves of the spaced apart setting in periphery around described axis hole；
Multiple permanent magnets, multiple described permanent magnets are located in the described Magnet groove of correspondence, and described permanent magnet is rare-earth permanent magnet.
Rotor for motor the most according to claim 1, it is characterised in that multiple described rotor punchings include first turn
Sub-punching and the second rotor punching, the shaft hole diameter of described the first rotor punching and the shaft hole diameter of described second rotor punching are not
With.
Rotor for motor the most according to claim 1, it is characterised in that the internal diameter of described axis hole is D1, described turn
The maximum outside diameter of sub-punching is D2, and described D1, described D2 meet: 2.5≤D2/D1≤2.6.
Rotor for motor the most according to claim 1, it is characterised in that each described Magnet groove includes linearly prolonging
The main paragraph stretched and the bending segment being located at described main paragraph two ends, each described permanent magnet is located at the institute of the described Magnet groove of correspondence
State in main paragraph.
Rotor for motor the most according to claim 4, it is characterised in that the outer contour of described rotor punching includes
Being arranged concentrically and the first arc section that radius of curvature is different and the second arc section, described first arc section is that spaced apart setting is many
Individual and each described first arc section is correspondingly arranged with the middle part of each described Magnet groove, and described second arc section is that interval is offered
The institute that neighbouring two ends of multiple and each described second arc section put and adjacent two described Magnet grooves are corresponding, adjacent
State the first arc section to be connected by changeover portion with described second arc section.
Rotor for motor the most according to claim 5, it is characterised in that the radius of curvature of described first arc section is
R1, the radius of curvature of described second arc section is R2, and described R1, described R2 meet: 1.010≤R1/R2≤1.045.
Rotor for motor the most according to claim 1, it is characterised in that be also formed with multiple on described punching body
Through hole, the end in outside and neighbouring described Magnet groove that each described through hole is located at described Magnet groove is arranged.
Rotor for motor the most according to claim 1, it is characterised in that the thickness H scope of described permanent magnet is:
1.5mm≤H≤2.5mm。
9. a motor, it is characterised in that including: according to the rotor for motor according to any one of claim 1-8.
10. a compressor, it is characterised in that including:
Bent axle；
Motor according to claim 9, the main shaft section of described bent axle and the described shaft hole matching of described rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693818.0U CN205864109U (en) | 2016-06-30 | 2016-06-30 | Rotor, motor and compressor for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693818.0U CN205864109U (en) | 2016-06-30 | 2016-06-30 | Rotor, motor and compressor for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205864109U true CN205864109U (en) | 2017-01-04 |
Family
ID=57645189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620693818.0U Expired - Fee Related CN205864109U (en) | 2016-06-30 | 2016-06-30 | Rotor, motor and compressor for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205864109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026465A (en) * | 2016-06-30 | 2016-10-12 | 安徽美芝制冷设备有限公司 | Motor rotor, motor and compressor |
-
2016
- 2016-06-30 CN CN201620693818.0U patent/CN205864109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026465A (en) * | 2016-06-30 | 2016-10-12 | 安徽美芝制冷设备有限公司 | Motor rotor, motor and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |